With NFL free agency not far away and a whirlwind of cuts and trades in progress, I want to focus on the 12 veteran fantasy running back sleepers whom I believe have a chance of becoming solid contributors this upcoming season. Some of these players I and others at RotoViz have written about previously, but when it comes to talking about guys who could be to 2015 what C.J. Anderson was to 2014 we really can’t talk too much.1